Purpose: This study developed and validated a novel measure that captures the diverse positive experiences related to perceived informal support. We also examined its cross-sectional and longitudinal correlates in people with post-traumatic stress disorder (PTSD) symptoms. Method: We analyzed data from an international clinical trial. Participants with PTSD symptoms completed assessments at baseline (N = 230) and after 1 month (N = 80). Results: The 34-item Perceived Informal Support Questionnaire (PISQ) had a two-factor structure, was internally consistent, and showed convergent validity with a general measure of social support. Additionally, baseline emotional support predicted fewer depressive symptoms (β = -.356, p = .015) and lower levels of impairments (β = -.271, p = .018) at 1-month follow-up. Discussion: This study offers a novel measure that captures the diverse experiences related to perceived informal support. It also highlights the importance of involving and supporting caregivers of individuals with mental health struggles, specifically PTSD symptoms.

中文翻译：

---

感知非正式支持问卷：创伤后应激障碍症状患者的验证和临床相关性

目的：本研究开发并验证了一种新颖的衡量标准，该衡量标准能够捕捉与感知到的非正式支持相关的各种积极体验。我们还研究了其与创伤后应激障碍（PTSD）症状患者的横向和纵向相关性。方法：我们分析了一项国际临床试验的数据。患有 PTSD 症状的参与者在基线 (N = 230) 和 1 个月后 (N = 80) 完成了评估。结果：34 项感知非正式支持问卷 (PISQ) 具有双因素结构，内部一致，并与社会支持的一般衡量标准表现出收敛效度。此外，基线情感支持预测 1 个月随访时抑郁症状会减少 (β = -.356，p = .015)，损伤水平也会降低 (β = -.271，p = .018)。讨论：这项研究提供了一种新颖的衡量标准，可以捕捉与感知到的非正式支持相关的不同经历。它还强调了让有心理健康问题（特别是有创伤后应激障碍症状）的个人的护理人员参与和支持的重要性。